Hear me out. On Reddit, the #solarpunk channel is decidedly anti-blockchain. To me, this is totally surprising and against the actual ethos of Solarpunk - to integrate technology for a bright, clean future.

Granted, blockchains don’t have much reputation in alternative circles. And for a good reason. A lot is just linked to scams, get-rich-quick dudes, and speculation, apart from energy consumption arguments.

But blockchain at its core is just a distributed database. One that has no central authority, can not be tampered with, cannot be altered, nor taken down if parametrized accordingly.

This allows - as a potential - to democratize access and value creation. Renewable energy is also fundamentally decentralized. Everyone can participate!

Now, with the costs of renewable energy creation (notably solar) shrunk significantly, and the demand for energy consumption rising heavily, if we only think about the booming electric vehicles alone -

What if people could earn money by generating solar energy and selling directly to vehicles, instead of the grid? I believe this could actually boost renewable energy generation over the roof.

Generators would be rewarded with a blockchain token for the energy generated, while consumers would pay for the energy in those tokens. Therefore speculation would be curbed as the tokens are for a real thing, energy, which on top is a stable unit - kWh.

Of course there are a lot of hurdles here - mostly institutional. Usually, energy is controlled by local authorities. They don’t want to allow anyone access to this market.

Then there is the distribution issue. Energy must be transported to the points of consumption, the charging stations. But due to the decentralized nature, this could actually result surprisingly cheap, as instead of transporting large distances, more charging stations in neighborhoods could reduce those distances. But still, this would require upfront charging stations and distribution investments.

I am an engineer. A dreamer. More often than not, as many many others, the realities of markets and economies clash with such ideals, thrashing generally good ideas.

But I wonder if such a scheme could made be possible. Anyone having some good suggestions? I mean mainly from the economics side. How to design the scheme, how to make it so that it is interesting to everyone? There are already several solar energy blockchains, but they kinda failed to get traction.

For the more radicals - I also dream of a money-less Solarpunk future, but to date, it seems further away than ever, looking at the right wing surge everywhere. Maybe we can build bridges at least from the technological side. Thank you if you got so far. Happy to respond to critique and questions.

  • holon_earth@slrpnk.netOP
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    2 days ago

    I thought the same way as validating in Proof-of-Stake works: The devices have a private key (yes there are issues there about securing them for non-authorized access, but they can largely be addressed like also nodes do) which is registered on the blockchain. Then only these registered devices can issue coins. This is critical and there might be a lot of ways this could be hackable, which could or could not be mitigated. However I thought it’s not more of a challenge than running say an Ethereum or any other node.

    • FaceDeer@fedia.io
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      2 days ago

      This isn’t anything like how validating in proof-of-stake works (at least not in Ethereum’s version, which is the one I’m familiar with). Validating is permissionless. Anyone can set up a validating account, there’s no authority that can reject you.

      Who “authorizes” keys to determine if a particular solarpunk miner is sufficiently solarpunk?

      • holon_earth@slrpnk.netOP
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        1 day ago

        Yeah that is the single most important issue why the whole project is probably flawed. It was addressed in some other comment by some other thoughful commentator in a slightly different way. I know Ethereum (and other PoS chains) pretty well too, and I understand permissionless.

        It shouldn’t be authorized. Ideally, through the energy meter, only solar (and other renewable) energy generated should be able to mint the coins. There should be some kind of protocol or consensus mechanism that would accomplish that. I guess no such protocol exists :) Thanks!

    • knightly the Sneptaur@pawb.social
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      2 days ago

      Proof of stake is a centralized system. If access to your ledger is going to remain centralized then there’s no need for it to be a blockchain. You can just have a regular distributed database.